Efficient third harmonic generation of a CW-fibered 1.5 µm laser diode

Philippe, Charles; Chea, Erick; Nishida, Y.; Burck, Frédéric Du; Acef, O.

doi:10.1007/s00340-016-6542-5

Cited by 19 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This frequency stability measurement can test the potential progress of the contamination of iodine cells over the years. The stabilization scheme was based on an Erbium-doped fiber laser supported by an Erbium-doped fiber amplifier which gives about 800 mW at 1.54 μm and an all-fiber optical tripling stage (two cascaded periodically poled Lithium Niobate (PPLN) ridge nonlinear crystals in a single-pass configuration) with 290 mW of optical power in the green range ( λ ~ 514 nm) at the output (conversion efficiency > 36%) [ 35 ]. The small part of this green laser light was fed into a classic modulation transfer spectroscopy setup [ 33 , 36 ] and the laser frequency was locked to detect the hyperfine transition a 1 of the R(34) (44-0) line in the tested iodine cell (double-pass arrangement).…”

Section: Resultsmentioning

confidence: 99%

Iodine Absorption Cells Purity Testing

Hrabina

Zucco

Philippe

et al. 2017

Sensors

Self Cite

View full text Add to dashboard Cite

This article deals with the evaluation of the chemical purity of iodine-filled absorption cells and the optical frequency references used for the frequency locking of laser standards. We summarize the recent trends and progress in absorption cell technology and we focus on methods for iodine cell purity testing. We compare two independent experimental systems based on the laser-induced fluorescence method, showing an improvement of measurement uncertainty by introducing a compensation system reducing unwanted influences. We show the advantages of this technique, which is relatively simple and does not require extensive hardware equipment. As an alternative to the traditionally used methods we propose an approach of hyperfine transitions’ spectral linewidth measurement. The key characteristic of this method is demonstrated on a set of testing iodine cells. The relationship between laser-induced fluorescence and transition linewidth methods will be presented as well as a summary of the advantages and disadvantages of the proposed technique (in comparison with traditional measurement approaches).

show abstract

Section: Resultsmentioning

confidence: 99%

Iodine Absorption Cells Purity Testing

Hrabina

Zucco

Philippe

et al. 2017

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…We generate up to 300 mW of harmonic power in the green at 3, using 330 mW of red power at 2 associated to 200 mW of fundamental power at . The more detailed description is given in [12].…”

Section: Free Space Optical Frequency Standard Descriptionmentioning

confidence: 99%

“…We have already demonstrated the ability to generate a green radiation from a C-band Telecom laser diode, by using an efficient frequency tripling process yielding to the generation of 300 mW in the green from only 800 mW. This result corresponds to an optical conversion from the IR to the green P / P > 36 %, in a continuous wave regime [12]. Moreover, this THG process uses only 20 W of total consumption power, which can be drastically reduced knowing that less than 10% of that generated green power is needed for the Doppler free iodine spectroscopy used in this work for the frequency stabilization purpose.…”

Section: Introductionmentioning

confidence: 98%

“…In this work, we propose to take advantage of numerous strong and much narrow lines located in the 510 nm-520 nm range [6], barely a few GHz apart, to frequency stabilize any Telecom laser source emitting in the C Band of the optical domain, after a frequency tripling process [12]. In such a way, ultra-compact and mainly fibered OFS can be set up, combining superior metrological qualities of iodine transitions in this green range to narrow linewidth lasers and various optical fibered components who exhibit a high technological readiness level (TRL) existing in the Telecom band [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact and Transportable Iodine Frequency-stabilized laser

Barbarat¹,

Gillot²,

Alvarez-Martinez³

et al. 2019

International Conference on Space Optics — ICSO 2018

View full text Add to dashboard Cite

We report on a compact optical frequency standard (OFS) based on a Telecom laser diode operating at ~ 1542 nm, frequency stabilized to a narrow iodine transition located in the green range of the visible domain (~514 nm), after a highly efficient frequency tripling process. We use two cascaded waveguide Lithium Niobate nonlinear crystals for the third harmonic generation process (THG), resulting in a harmonic power of 300 mW in the green range (@ 3) using 800 mW of infrared power (@ ). This result corresponds to an optical conversion efficiency P/P > 36 % which is -to our knowledge-the best result ever reported for a third harmonic process in continuous wave regime (CW). This process uses only 20 W of total consumption power, which can be drastically reduced, knowing that less than 10% of that green power level is needed for the iodine Doppler free spectroscopy, and consequently for the frequency stabilization purpose. We have already demonstrated a frequency stability of 2.9 x10 -14  -1/2 conferred to a laser diode operating at ~ 1542 nm, using the a1 hyperfine component of the R34 [44-0] located at ~ 514 nm. This corresponds to an amplitude spectral density of the residual frequency fluctuations < 10 Hz/√Hz. We plan to extend this approach to set up a new OFS by using a narrow linewidth fiber-laser emitting at ~ 1597 nm, which will be used for the phase-locking of a 1064 nm laser. Thus, this OFS, compact and mainly fibered, will perform the same role as that of a rigid optical cavity, widely used to stabilize 1064 nm lasers, involved in various terrestrial applications or space missions. The compact design of the whole setup will make it easily transportable to different sites and could be readily used as an ultra-stable frequency reference.

show abstract

“…Following this demonstration, we propose a new optical architecture using two fibered ridge waveguide PPLN nonlinear crystals [11]. We utilize two optically fibered ridge waveguide Zn doped PPLN crystals to achieve a SHG process followed by a SFG process in an original optical arrangement as depicted in Fig.…”

Section: Introductionmentioning

confidence: 99%

A compact frequency stabilized telecom laser diode for space applications

Philippe¹,

Holleville²,

Targat³

et al. 2017

International Conference on Space Optics — ICSO 2016

View full text Add to dashboard Cite

We report on a Telecom laser diode (LD) frequency stabilization to a narrow iodine hyperfine line in the green range, after frequency tripling process using fibered nonlinear waveguide PPLN crystals. We have generated up to 300 mW optical power in the green range (~514 nm) from 800 mW of infrared power (~1542 nm), corresponding to a nonlinear conversion efficiency η = P3ω/Pω ~ 36%. Less than 10 mW of the generated green power are used for Doppler-free spectroscopy of 127 I2 molecular iodine, and -therefore-for the frequency stabilization purpose. The frequency tripling optical setup is very compact (< 5 l), fully fibered, and could operate over the full C-band of the Telecom range (1530 nm -1565 nm). Several thousands of hyperfine iodine lines may thus be interrogated in the 510 nm -521 nm range. We build up an optical bench used at first in free space configuration, using the well-known modulation transfer spectroscopy technique (MTS), in order to test the potential of this new frequency standard based on the couple "1.5 µm laser / iodine molecule". We have already demonstrated a preliminary frequency stability of 4.8 x 10 -14 τ -1/2 with a minimum value of 6 x 10 -15 reached after 50 s of integration time, conferred to a laser diode operating at 1542.1 nm.We focus now our efforts to expand the frequency stability to a longer integration time in order to meet requirements of many space experiments, such earth gravity missions, inters satellites links or space to ground communications.Furthermore, we investigate the potential of a new approach based on frequency modulation technique (FM), associated to a 3 rd harmonic detection of iodine lines to increase the compactness of the optical setup.

show abstract

Efficient third harmonic generation of a CW-fibered 1.5 µm laser diode

Cited by 19 publications

References 25 publications

Iodine Absorption Cells Purity Testing

Iodine Absorption Cells Purity Testing

Compact and Transportable Iodine Frequency-stabilized laser

A compact frequency stabilized telecom laser diode for space applications

Contact Info

Product

Resources

About